Through the motor internal PTC or PTCs the DTA detects when one or more motor windings are exceeding the maximum operating winding temperature.

The PTC type installed in the motor is different according to the motor insulation temperature.

The temperature triggering threshold is detemined by the PTC Type.

DTA72 is equipped with 2 outputs which operate in a complementary mode.

It can be set to operate as MANUAL or AUTO reset.

Benefits

• High operating safety. The thresholds are determined by the Motor internal PTC. Beyond the specified temperature the output stops the motor/s.

• Save time and costs.There is no need to connect other additional and expensive controllers.

• Ensure continuous production process in your plant. This type of controller allows limitation of false alarms which may be the cause of useless interruptions of production systems when comparing with other electrical measures (i.e. current or power).

• Two outputs. The 2 ouputs provide, besides interrupting the motor supply, an additional signal for a lamp, PC or PLC.

• Bi-colour front LED. It provides indications about alarm status and alarm discrimination.

Features

The post DTA72 Motor Thermistor Monitoring Relay appeared first on SCL System.

DTA71 is a motor thermistor monitoring relay.

Through the motor internal PTC or PTCs the DTA detects when one or more motor windings are exceeding the maximum operating winding temperature.

The PTC type installed in the motor is different according to the motor insulation temperature.

The temperature triggering threshold is detemined by the PTC Type.

The relay is equipped with 1 SPDT relay output and AUTO reset.

Benefits

• High operating safety. The thresholds are determined by the Motor internal PTC. Beyond the specified temperature the output stops the motor/s.

• Save time and costs.There is no need to connect other additional and expensive controllers.

• Ensure continuous production process in your plant. This type of controller allows limitation of false alarms which may be the cause of useless interruptions of production systems when comparing with other electrical measures (i.e. current or power).

• Bi-colour front LED. It provides indications about alarm status and alarm discrimination.

Features

The post DTA71 Motor Thermistor Monitoring Relay appeared first on SCL System.

Through the motor internal PTC or PTCs the DTA detects when one or more motor windings are exceeding the maximum operating winding temperature.

The PTC type installed in the motor is different according to the motor insulation temperature. The temperature triggering threshold is detemined by the PTC Type.

The relay is equipped with 2 outputs which operate in a complementary mode. The DTA04 can be set to operate as MANUAL or AUTO reset.

When set to manual, the front LED will notify when the motor temperature is back to normal avoiding to try to restore operation uselessly.

Benefits

• High operating safety. The thresholds are determined by the Motor internal PTC. Beyond the specified temperature the output stops the motor/s.

• Save time and costs.There is no need to connect other additional and expensive controllers.

• Ensure continuous production process in your plant. This type of controller allows limitation of false alarms which may be the cause of useless interruptions of production systems.

• Two outputs. The 2 ouputs provide, besides interrupting the motor supply, an additional signal for a lamp, PC or PLC.

• Bi-colour front LED. These devices indicate alarms for temperature and PTC

Features

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They can be used to monitor the temperature of the coils of a motor with built-in PTC’s.

The alarm status of the relay can be reset by either an external contact or an internal button (DTA02, PTA02).

The test button allows the simulation of the fault condition (DTA02, PTA02).

The red LED indicates the alarm status.

Features

• Motor temperature monitoring relay

• Measuring ranges: PTC according to EN 44081

• Remote and local alarm reset (DTA02, PTA02)

• Output: 8 A SPDT (PTA01/DTA01/DTA02) or SPST (DTA01) relay, normally energized

• For mounting on DIN-rail in accordance with DIN/EN 50 022 (DTA01, DTA02) or plug-in module (PTA01, PTA02)

• 22.5 mm Euronorm housing (DTA01, DTA02) or 36 mm plug-in module (PTA01, PTA02)

• LED indication for relay and power supply ON (DTA02, PTA02)

• Galvanically separated power supply

The post PTA02 Motor Temperature Monitoring Relay appeared first on SCL System.

They can be used to monitor the temperature of the coils of a motor with built-in PTC’s.

The alarm status of the relay can be reset by either an external contact or an internal button (DTA02, PTA02).

The test button allows the simulation of the fault condition (DTA02, PTA02).

The red LED indicates the alarm status.

Features

• Motor temperature monitoring relay

• Measuring ranges: PTC according to EN 44081

• Remote and local alarm reset (DTA02, PTA02)

• Output: 8 A SPDT (PTA01/DTA01/DTA02) or SPST (DTA01) relay, normally energized

• For mounting on DIN-rail in accordance with DIN/EN 50 022 (DTA01, DTA02) or plug-in module (PTA01, PTA02)

• 22.5 mm Euronorm housing (DTA01, DTA02) or 36 mm plug-in module (PTA01, PTA02)

• LED indication for relay and power supply ON (DTA02, PTA02)

• Galvanically separated power supply

The post PTA01 Motor Temperature Monitoring Relay appeared first on SCL System.

They can be used to monitor the temperature of the coils of a motor with built-in PTC’s.

The alarm status of the relay can be reset by either an external contact or an internal button (DTA02, PTA02).

The test button allows the simulation of the fault condition (DTA02, PTA02).

The red LED indicates the alarm status.

Features

• Motor temperature monitoring relay

• Measuring ranges: PTC according to EN 44081

• Remote and local alarm reset (DTA02, PTA02)

• Output: 8 A SPDT (PTA01/DTA01/DTA02) or SPST (DTA01) relay, normally energized

• For mounting on DIN-rail in accordance with DIN/EN 50 022 (DTA01, DTA02) or plug-in module (PTA01, PTA02)

• 22.5 mm Euronorm housing (DTA01, DTA02) or 36 mm plug-in module (PTA01, PTA02)

• LED indication for relay and power supply ON (DTA02, PTA02)

• Galvanically separated power supply

The post DTA02 Motor Temperature Monitoring Relay appeared first on SCL System.

DTA01, DTA02, PTA01 and PTA02 are precise thermistor monitoring relays.

They can be used to monitor the temperature of the coils of a motor with built-in PTC’s.

The alarm status of the relay can be reset by either an external contact or an internal button (DTA02, PTA02).

The test button allows the simulation of the fault condition (DTA02, PTA02).

The red LED indicates the alarm status.

Features

• Motor temperature monitoring relay

• Measuring ranges: PTC according to EN 44081

• Remote and local alarm reset (DTA02, PTA02)

• Output: 8 A SPDT (PTA01/DTA01/DTA02) or SPST (DTA01) relay, normally energized

• For mounting on DIN-rail in accordance with DIN/EN 50 022 (DTA01, DTA02) or plug-in module (PTA01, PTA02)

• 22.5 mm Euronorm housing (DTA01, DTA02) or 36 mm plug-in module (PTA01, PTA02)

• LED indication for relay and power supply ON (DTA02, PTA02)

• Galvanically separated power supply

The post DTA01 Motor Temperature Monitoring Relay appeared first on SCL System.

These devices detect the difference in the current flow on the lines running through the coil.

They work on either single phase or three-phase mains.

When the vectorial sum of the current flowing to the load and the one flowing on the NEUTRAL cable (if present) is different from “0” (zero), a current on the CT secondary circuit is generated.

The current difference is usually caused by a leak which may cause an hazard.

The output signal can be used by a residual current monitoring device which will disconnect the monitored load or send an alarm signal.

Benefits

• High sensisitivity.

• Wide range.

• Easy installation.

Features

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The setpoint of the leakage current is adjustable. The device is equipped with two changeover relay outputs.

One output triggers at 60% of fault current setpoint value providing a warning to user, the other output is used to shut down the system to prevent accidents.

Benefits

• Adjustable trip level. Adjustable leakage threshold from 30mA to 5A or from 300mA to 30A.

• 2 outputs. Two relay outputs provide, besides the alarm signal an additional warning output.

• Level indication. LED Bar shows at a glance the real time leakage level.

• Nuisance tripping safe. EN 60947-2 Annex M conformity.

• Anti tampering. Sealable front lid provides protection against possible tampering.

• Remote R/T button. Input for external reset switch allows remote system restart in case of tripping.

• Single / Threephase mains. The DEB71 can be used on both three phase or single phase.

Features

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The setpoint of the leakage current is factory set to 30mA or 300mA according to model and it is not adjustable.

The device is equipped with two changeover relay outputs.

One output triggers at 60% of fault current setpoint value providing a warning to user, the other output is used to shut down the system to prevent accidents.

Benefits

• Fixed trip level, easy setup “Plug’n Play”. Time saving installation, reliable tripping level and safety against tampering.

• 2 outputs. Two relay outputs provide, besides the alarm signal an additional warning output.

• Nuisance tripping safe. EN 60947-2 Annex M conformity.

• Remote R/T button. Input for external reset switch allows remote system restart in case of tripping.

• Single / Threephase mains. The DEA71 can be used on both three phase or single phase.

Features

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